[Feature]Upload Modem source code

Change-Id: Id4294f30faced84d3e6fd6d5e61e1111bf287a37
diff --git a/mcu/tools/perl/Spreadsheet/WriteExcel/Chart/Area.pm b/mcu/tools/perl/Spreadsheet/WriteExcel/Chart/Area.pm
new file mode 100644
index 0000000..9025798
--- /dev/null
+++ b/mcu/tools/perl/Spreadsheet/WriteExcel/Chart/Area.pm
@@ -0,0 +1,194 @@
+package Spreadsheet::WriteExcel::Chart::Area;
+
+###############################################################################
+#
+# Area - A writer class for Excel Area charts.
+#
+# Used in conjunction with Spreadsheet::WriteExcel::Chart.
+#
+# See formatting note in Spreadsheet::WriteExcel::Chart.
+#
+# Copyright 2000-2010, John McNamara, jmcnamara@cpan.org
+#
+# Documentation after __END__
+#
+
+require Exporter;
+
+use strict;
+use Spreadsheet::WriteExcel::Chart;
+
+
+use vars qw($VERSION @ISA);
+@ISA = qw(Spreadsheet::WriteExcel::Chart Exporter);
+
+$VERSION = '2.37';
+
+###############################################################################
+#
+# new()
+#
+#
+sub new {
+
+    my $class = shift;
+    my $self  = Spreadsheet::WriteExcel::Chart->new( @_ );
+
+    bless $self, $class;
+    return $self;
+}
+
+
+###############################################################################
+#
+# _store_chart_type()
+#
+# Implementation of the abstract method from the specific chart class.
+#
+# Write the AREA chart BIFF record. Defines a area chart type.
+#
+sub _store_chart_type {
+
+    my $self = shift;
+
+    my $record = 0x101A;    # Record identifier.
+    my $length = 0x0002;    # Number of bytes to follow.
+    my $grbit  = 0x0001;    # Option flags.
+
+    my $header = pack 'vv', $record, $length;
+    my $data = pack 'v', $grbit;
+
+    $self->_append( $header, $data );
+}
+
+
+1;
+
+
+__END__
+
+
+=head1 NAME
+
+Area - A writer class for Excel Area charts.
+
+=head1 SYNOPSIS
+
+To create a simple Excel file with a Area chart using Spreadsheet::WriteExcel:
+
+    #!/usr/bin/perl -w
+
+    use strict;
+    use Spreadsheet::WriteExcel;
+
+    my $workbook  = Spreadsheet::WriteExcel->new( 'chart.xls' );
+    my $worksheet = $workbook->add_worksheet();
+
+    my $chart     = $workbook->add_chart( type => 'area' );
+
+    # Configure the chart.
+    $chart->add_series(
+        categories => '=Sheet1!$A$2:$A$7',
+        values     => '=Sheet1!$B$2:$B$7',
+    );
+
+    # Add the worksheet data the chart refers to.
+    my $data = [
+        [ 'Category', 2, 3, 4, 5, 6, 7 ],
+        [ 'Value',    1, 4, 5, 2, 1, 5 ],
+    ];
+
+    $worksheet->write( 'A1', $data );
+
+    __END__
+
+=head1 DESCRIPTION
+
+This module implements Area charts for L<Spreadsheet::WriteExcel>. The chart object is created via the Workbook C<add_chart()> method:
+
+    my $chart = $workbook->add_chart( type => 'area' );
+
+Once the object is created it can be configured via the following methods that are common to all chart classes:
+
+    $chart->add_series();
+    $chart->set_x_axis();
+    $chart->set_y_axis();
+    $chart->set_title();
+
+These methods are explained in detail in L<Spreadsheet::WriteExcel::Chart>. Class specific methods or settings, if any, are explained below.
+
+=head1 Area Chart Methods
+
+There aren't currently any area chart specific methods. See the TODO section of L<Spreadsheet::WriteExcel::Chart>.
+
+=head1 EXAMPLE
+
+Here is a complete example that demonstrates most of the available features when creating a chart.
+
+    #!/usr/bin/perl -w
+
+    use strict;
+    use Spreadsheet::WriteExcel;
+
+    my $workbook  = Spreadsheet::WriteExcel->new( 'chart_area.xls' );
+    my $worksheet = $workbook->add_worksheet();
+    my $bold      = $workbook->add_format( bold => 1 );
+
+    # Add the worksheet data that the charts will refer to.
+    my $headings = [ 'Number', 'Sample 1', 'Sample 2' ];
+    my $data = [
+        [ 2, 3, 4, 5, 6, 7 ],
+        [ 1, 4, 5, 2, 1, 5 ],
+        [ 3, 6, 7, 5, 4, 3 ],
+    ];
+
+    $worksheet->write( 'A1', $headings, $bold );
+    $worksheet->write( 'A2', $data );
+
+    # Create a new chart object. In this case an embedded chart.
+    my $chart = $workbook->add_chart( type => 'area', embedded => 1 );
+
+    # Configure the first series. (Sample 1)
+    $chart->add_series(
+        name       => 'Sample 1',
+        categories => '=Sheet1!$A$2:$A$7',
+        values     => '=Sheet1!$B$2:$B$7',
+    );
+
+    # Configure the second series. (Sample 2)
+    $chart->add_series(
+        name       => 'Sample 2',
+        categories => '=Sheet1!$A$2:$A$7',
+        values     => '=Sheet1!$C$2:$C$7',
+    );
+
+    # Add a chart title and some axis labels.
+    $chart->set_title ( name => 'Results of sample analysis' );
+    $chart->set_x_axis( name => 'Test number' );
+    $chart->set_y_axis( name => 'Sample length (cm)' );
+
+    # Insert the chart into the worksheet (with an offset).
+    $worksheet->insert_chart( 'D2', $chart, 25, 10 );
+
+    __END__
+
+
+=begin html
+
+<p>This will produce a chart that looks like this:</p>
+
+<p><center><img src="http://homepage.eircom.net/~jmcnamara/perl/images/area1.jpg" width="527" height="320" alt="Chart example." /></center></p>
+
+=end html
+
+
+=head1 AUTHOR
+
+John McNamara jmcnamara@cpan.org
+
+=head1 COPYRIGHT
+
+Copyright MM-MMX, John McNamara.
+
+All Rights Reserved. This module is free software. It may be used, redistributed and/or modified under the same terms as Perl itself.
+
diff --git a/mcu/tools/perl/Spreadsheet/WriteExcel/Chart/Bar.pm b/mcu/tools/perl/Spreadsheet/WriteExcel/Chart/Bar.pm
new file mode 100644
index 0000000..6e0d9b7
--- /dev/null
+++ b/mcu/tools/perl/Spreadsheet/WriteExcel/Chart/Bar.pm
@@ -0,0 +1,228 @@
+package Spreadsheet::WriteExcel::Chart::Bar;
+
+###############################################################################
+#
+# Bar - A writer class for Excel Bar charts.
+#
+# Used in conjunction with Spreadsheet::WriteExcel::Chart.
+#
+# See formatting note in Spreadsheet::WriteExcel::Chart.
+#
+# Copyright 2000-2010, John McNamara, jmcnamara@cpan.org
+#
+# Documentation after __END__
+#
+
+require Exporter;
+
+use strict;
+use Spreadsheet::WriteExcel::Chart;
+
+
+use vars qw($VERSION @ISA);
+@ISA = qw(Spreadsheet::WriteExcel::Chart Exporter);
+
+$VERSION = '2.37';
+
+###############################################################################
+#
+# new()
+#
+#
+sub new {
+
+    my $class = shift;
+    my $self  = Spreadsheet::WriteExcel::Chart->new( @_ );
+
+    bless $self, $class;
+
+    # The axis positions are reversed for a bar chart so we change the config.
+    my $c = $self->{_config};
+    $c->{_x_axis_text}     = [ 0x2D,   0x6D9,  0x5F,   0x1CC, 0x281,  0x0, 90 ];
+    $c->{_x_axis_text_pos} = [ 2,      2,      0,      0,     0x17,   0x2A ];
+    $c->{_y_axis_text}     = [ 0x078A, 0x0DFC, 0x011D, 0x9C,  0x0081, 0x0000 ];
+    $c->{_y_axis_text_pos} = [ 2,      2,      0,      0,     0x45,   0x17 ];
+
+    return $self;
+}
+
+
+###############################################################################
+#
+# _store_chart_type()
+#
+# Implementation of the abstract method from the specific chart class.
+#
+# Write the BAR chart BIFF record. Defines a bar or column chart type.
+#
+sub _store_chart_type {
+
+    my $self = shift;
+
+    my $record    = 0x1017;    # Record identifier.
+    my $length    = 0x0006;    # Number of bytes to follow.
+    my $pcOverlap = 0x0000;    # Space between bars.
+    my $pcGap     = 0x0096;    # Space between cats.
+    my $grbit     = 0x0001;    # Option flags.
+
+    my $header = pack 'vv', $record, $length;
+    my $data = '';
+    $data .= pack 'v', $pcOverlap;
+    $data .= pack 'v', $pcGap;
+    $data .= pack 'v', $grbit;
+
+    $self->_append( $header, $data );
+}
+
+###############################################################################
+#
+# _set_embedded_config_data()
+#
+# Override some of the default configuration data for an embedded chart.
+#
+sub _set_embedded_config_data {
+
+    my $self = shift;
+
+    # Set the parent configuration first.
+    $self->SUPER::_set_embedded_config_data();
+
+    # The axis positions are reversed for a bar chart so we change the config.
+    my $c = $self->{_config};
+    $c->{_x_axis_text}     = [ 0x57,   0x5BC,  0xB5,   0x214, 0x281, 0x0, 90 ];
+    $c->{_x_axis_text_pos} = [ 2,      2,      0,      0,     0x17,  0x2A ];
+    $c->{_y_axis_text}     = [ 0x074A, 0x0C8F, 0x021F, 0x123, 0x81,  0x0000 ];
+    $c->{_y_axis_text_pos} = [ 2,      2,      0,      0,     0x45,  0x17 ];
+
+}
+
+1;
+
+
+__END__
+
+
+=head1 NAME
+
+Bar - A writer class for Excel Bar charts.
+
+=head1 SYNOPSIS
+
+To create a simple Excel file with a Bar chart using Spreadsheet::WriteExcel:
+
+    #!/usr/bin/perl -w
+
+    use strict;
+    use Spreadsheet::WriteExcel;
+
+    my $workbook  = Spreadsheet::WriteExcel->new( 'chart.xls' );
+    my $worksheet = $workbook->add_worksheet();
+
+    my $chart     = $workbook->add_chart( type => 'bar' );
+
+    # Configure the chart.
+    $chart->add_series(
+        categories => '=Sheet1!$A$2:$A$7',
+        values     => '=Sheet1!$B$2:$B$7',
+    );
+
+    # Add the worksheet data the chart refers to.
+    my $data = [
+        [ 'Category', 2, 3, 4, 5, 6, 7 ],
+        [ 'Value',    1, 4, 5, 2, 1, 5 ],
+    ];
+
+    $worksheet->write( 'A1', $data );
+
+    __END__
+
+=head1 DESCRIPTION
+
+This module implements Bar charts for L<Spreadsheet::WriteExcel>. The chart object is created via the Workbook C<add_chart()> method:
+
+    my $chart = $workbook->add_chart( type => 'bar' );
+
+Once the object is created it can be configured via the following methods that are common to all chart classes:
+
+    $chart->add_series();
+    $chart->set_x_axis();
+    $chart->set_y_axis();
+    $chart->set_title();
+
+These methods are explained in detail in L<Spreadsheet::WriteExcel::Chart>. Class specific methods or settings, if any, are explained below.
+
+=head1 Bar Chart Methods
+
+There aren't currently any bar chart specific methods. See the TODO section of L<Spreadsheet::WriteExcel::Chart>.
+
+=head1 EXAMPLE
+
+Here is a complete example that demonstrates most of the available features when creating a chart.
+
+    #!/usr/bin/perl -w
+
+    use strict;
+    use Spreadsheet::WriteExcel;
+
+    my $workbook  = Spreadsheet::WriteExcel->new( 'chart_bar.xls' );
+    my $worksheet = $workbook->add_worksheet();
+    my $bold      = $workbook->add_format( bold => 1 );
+
+    # Add the worksheet data that the charts will refer to.
+    my $headings = [ 'Number', 'Sample 1', 'Sample 2' ];
+    my $data = [
+        [ 2, 3, 4, 5, 6, 7 ],
+        [ 1, 4, 5, 2, 1, 5 ],
+        [ 3, 6, 7, 5, 4, 3 ],
+    ];
+
+    $worksheet->write( 'A1', $headings, $bold );
+    $worksheet->write( 'A2', $data );
+
+    # Create a new chart object. In this case an embedded chart.
+    my $chart = $workbook->add_chart( type => 'bar', embedded => 1 );
+
+    # Configure the first series. (Sample 1)
+    $chart->add_series(
+        name       => 'Sample 1',
+        categories => '=Sheet1!$A$2:$A$7',
+        values     => '=Sheet1!$B$2:$B$7',
+    );
+
+    # Configure the second series. (Sample 2)
+    $chart->add_series(
+        name       => 'Sample 2',
+        categories => '=Sheet1!$A$2:$A$7',
+        values     => '=Sheet1!$C$2:$C$7',
+    );
+
+    # Add a chart title and some axis labels.
+    $chart->set_title ( name => 'Results of sample analysis' );
+    $chart->set_x_axis( name => 'Test number' );
+    $chart->set_y_axis( name => 'Sample length (cm)' );
+
+    # Insert the chart into the worksheet (with an offset).
+    $worksheet->insert_chart( 'D2', $chart, 25, 10 );
+
+    __END__
+
+
+=begin html
+
+<p>This will produce a chart that looks like this:</p>
+
+<p><center><img src="http://homepage.eircom.net/~jmcnamara/perl/images/bar1.jpg" width="527" height="320" alt="Chart example." /></center></p>
+
+=end html
+
+
+=head1 AUTHOR
+
+John McNamara jmcnamara@cpan.org
+
+=head1 COPYRIGHT
+
+Copyright MM-MMX, John McNamara.
+
+All Rights Reserved. This module is free software. It may be used, redistributed and/or modified under the same terms as Perl itself.
+
diff --git a/mcu/tools/perl/Spreadsheet/WriteExcel/Chart/Column.pm b/mcu/tools/perl/Spreadsheet/WriteExcel/Chart/Column.pm
new file mode 100644
index 0000000..d0d0443
--- /dev/null
+++ b/mcu/tools/perl/Spreadsheet/WriteExcel/Chart/Column.pm
@@ -0,0 +1,199 @@
+package Spreadsheet::WriteExcel::Chart::Column;
+
+###############################################################################
+#
+# Column - A writer class for Excel Column charts.
+#
+# Used in conjunction with Spreadsheet::WriteExcel::Chart.
+#
+# See formatting note in Spreadsheet::WriteExcel::Chart.
+#
+# Copyright 2000-2010, John McNamara, jmcnamara@cpan.org
+#
+# Documentation after __END__
+#
+
+require Exporter;
+
+use strict;
+use Spreadsheet::WriteExcel::Chart;
+
+
+use vars qw($VERSION @ISA);
+@ISA = qw(Spreadsheet::WriteExcel::Chart Exporter);
+
+$VERSION = '2.37';
+
+###############################################################################
+#
+# new()
+#
+#
+sub new {
+
+    my $class = shift;
+    my $self  = Spreadsheet::WriteExcel::Chart->new( @_ );
+
+    bless $self, $class;
+    return $self;
+}
+
+
+###############################################################################
+#
+# _store_chart_type()
+#
+# Implementation of the abstract method from the specific chart class.
+#
+# Write the BAR chart BIFF record. Defines a bar or column chart type.
+#
+sub _store_chart_type {
+
+    my $self = shift;
+
+    my $record    = 0x1017;    # Record identifier.
+    my $length    = 0x0006;    # Number of bytes to follow.
+    my $pcOverlap = 0x0000;    # Space between bars.
+    my $pcGap     = 0x0096;    # Space between cats.
+    my $grbit     = 0x0000;    # Option flags.
+
+    my $header = pack 'vv', $record, $length;
+    my $data = '';
+    $data .= pack 'v', $pcOverlap;
+    $data .= pack 'v', $pcGap;
+    $data .= pack 'v', $grbit;
+
+    $self->_append( $header, $data );
+}
+
+
+1;
+
+
+__END__
+
+
+=head1 NAME
+
+Column - A writer class for Excel Column charts.
+
+=head1 SYNOPSIS
+
+To create a simple Excel file with a Column chart using Spreadsheet::WriteExcel:
+
+    #!/usr/bin/perl -w
+
+    use strict;
+    use Spreadsheet::WriteExcel;
+
+    my $workbook  = Spreadsheet::WriteExcel->new( 'chart.xls' );
+    my $worksheet = $workbook->add_worksheet();
+
+    my $chart     = $workbook->add_chart( type => 'column' );
+
+    # Configure the chart.
+    $chart->add_series(
+        categories => '=Sheet1!$A$2:$A$7',
+        values     => '=Sheet1!$B$2:$B$7',
+    );
+
+    # Add the worksheet data the chart refers to.
+    my $data = [
+        [ 'Category', 2, 3, 4, 5, 6, 7 ],
+        [ 'Value',    1, 4, 5, 2, 1, 5 ],
+    ];
+
+    $worksheet->write( 'A1', $data );
+
+    __END__
+
+=head1 DESCRIPTION
+
+This module implements Column charts for L<Spreadsheet::WriteExcel>. The chart object is created via the Workbook C<add_chart()> method:
+
+    my $chart = $workbook->add_chart( type => 'column' );
+
+Once the object is created it can be configured via the following methods that are common to all chart classes:
+
+    $chart->add_series();
+    $chart->set_x_axis();
+    $chart->set_y_axis();
+    $chart->set_title();
+
+These methods are explained in detail in L<Spreadsheet::WriteExcel::Chart>. Class specific methods or settings, if any, are explained below.
+
+=head1 Column Chart Methods
+
+There aren't currently any column chart specific methods. See the TODO section of L<Spreadsheet::WriteExcel::Chart>.
+
+=head1 EXAMPLE
+
+Here is a complete example that demonstrates most of the available features when creating a chart.
+
+    #!/usr/bin/perl -w
+
+    use strict;
+    use Spreadsheet::WriteExcel;
+
+    my $workbook  = Spreadsheet::WriteExcel->new( 'chart_column.xls' );
+    my $worksheet = $workbook->add_worksheet();
+    my $bold      = $workbook->add_format( bold => 1 );
+
+    # Add the worksheet data that the charts will refer to.
+    my $headings = [ 'Number', 'Sample 1', 'Sample 2' ];
+    my $data = [
+        [ 2, 3, 4, 5, 6, 7 ],
+        [ 1, 4, 5, 2, 1, 5 ],
+        [ 3, 6, 7, 5, 4, 3 ],
+    ];
+
+    $worksheet->write( 'A1', $headings, $bold );
+    $worksheet->write( 'A2', $data );
+
+    # Create a new chart object. In this case an embedded chart.
+    my $chart = $workbook->add_chart( type => 'column', embedded => 1 );
+
+    # Configure the first series. (Sample 1)
+    $chart->add_series(
+        name       => 'Sample 1',
+        categories => '=Sheet1!$A$2:$A$7',
+        values     => '=Sheet1!$B$2:$B$7',
+    );
+
+    # Configure the second series. (Sample 2)
+    $chart->add_series(
+        name       => 'Sample 2',
+        categories => '=Sheet1!$A$2:$A$7',
+        values     => '=Sheet1!$C$2:$C$7',
+    );
+
+    # Add a chart title and some axis labels.
+    $chart->set_title ( name => 'Results of sample analysis' );
+    $chart->set_x_axis( name => 'Test number' );
+    $chart->set_y_axis( name => 'Sample length (cm)' );
+
+    # Insert the chart into the worksheet (with an offset).
+    $worksheet->insert_chart( 'D2', $chart, 25, 10 );
+
+    __END__
+
+
+=begin html
+
+<p>This will produce a chart that looks like this:</p>
+
+<p><center><img src="http://homepage.eircom.net/~jmcnamara/perl/images/column1.jpg" width="527" height="320" alt="Chart example." /></center></p>
+
+=end html
+
+
+=head1 AUTHOR
+
+John McNamara jmcnamara@cpan.org
+
+=head1 COPYRIGHT
+
+Copyright MM-MMX, John McNamara.
+
+All Rights Reserved. This module is free software. It may be used, redistributed and/or modified under the same terms as Perl itself.
+
diff --git a/mcu/tools/perl/Spreadsheet/WriteExcel/Chart/External.pm b/mcu/tools/perl/Spreadsheet/WriteExcel/Chart/External.pm
new file mode 100644
index 0000000..3e40b85
--- /dev/null
+++ b/mcu/tools/perl/Spreadsheet/WriteExcel/Chart/External.pm
@@ -0,0 +1,119 @@
+package Spreadsheet::WriteExcel::Chart::External;
+
+###############################################################################
+#
+# External - A writer class for Excel external charts.
+#
+# Used in conjunction with Spreadsheet::WriteExcel
+#
+# perltidy with options: -mbl=2 -pt=0 -nola
+#
+# Copyright 2000-2010, John McNamara, jmcnamara@cpan.org
+#
+# Documentation after __END__
+#
+
+require Exporter;
+
+use strict;
+use Spreadsheet::WriteExcel::Chart;
+
+
+use vars qw($VERSION @ISA);
+@ISA = qw(Spreadsheet::WriteExcel::Chart Exporter);
+
+$VERSION = '2.37';
+
+###############################################################################
+#
+# new()
+#
+#
+sub new {
+
+    my $class             = shift;
+    my $external_filename = shift;
+    my $self              = Spreadsheet::WriteExcel::Chart->new( @_ );
+
+    $self->{_filename}     = $external_filename;
+    $self->{_external_bin} = 1;
+
+    bless $self, $class;
+    $self->_initialize();    # Requires overridden initialize().
+    return $self;
+}
+
+###############################################################################
+#
+# _initialize()
+#
+# Read all the data into memory for the external binary style chart.
+#
+#
+sub _initialize {
+
+    my $self = shift;
+
+    my $filename   = $self->{_filename};
+    my $filehandle = FileHandle->new( $filename )
+      or die "Couldn't open $filename in add_chart_ext(): $!.\n";
+
+    binmode( $filehandle );
+
+    $self->{_filehandle}    = $filehandle;
+    $self->{_datasize}      = -s $filehandle;
+    $self->{_using_tmpfile} = 0;
+
+    # Read the entire external chart binary into the the data buffer.
+    # This will be retrieved by _get_data() when the chart is closed().
+    read( $self->{_filehandle}, $self->{_data}, $self->{_datasize} );
+}
+
+
+###############################################################################
+#
+# _close()
+#
+# We don't need to create or store Chart data structures when using an
+# external binary, so we have a default close method.
+#
+sub _close {
+
+    my $self = shift;
+
+    return undef;
+}
+
+1;
+
+
+__END__
+
+
+=head1 NAME
+
+External - A writer class for Excel external charts.
+
+=head1 SYNOPSIS
+
+This module is used to include external charts in Spreadsheet::WriteExcel.
+
+=head1 DESCRIPTION
+
+This module is used to include external charts in L<Spreadsheet::WriteExcel>. It is an internal module and isn't used directly by the end user.
+
+It is semi-deprecated in favour of using "native" charts. See L<Spreadsheet::WriteExcel::Chart>.
+
+For information on how to used external charts see the C<external_charts.txt>  (or C<.pod>) in the C<external_charts> directory of the distro.
+
+
+=head1 AUTHOR
+
+John McNamara jmcnamara@cpan.org
+
+=head1 COPYRIGHT
+
+Copyright MM-MMX, John McNamara.
+
+All Rights Reserved. This module is free software. It may be used, redistributed and/or modified under the same terms as Perl itself.
+
diff --git a/mcu/tools/perl/Spreadsheet/WriteExcel/Chart/Line.pm b/mcu/tools/perl/Spreadsheet/WriteExcel/Chart/Line.pm
new file mode 100644
index 0000000..60320b6
--- /dev/null
+++ b/mcu/tools/perl/Spreadsheet/WriteExcel/Chart/Line.pm
@@ -0,0 +1,194 @@
+package Spreadsheet::WriteExcel::Chart::Line;
+
+###############################################################################
+#
+# Line - A writer class for Excel Line charts.
+#
+# Used in conjunction with Spreadsheet::WriteExcel::Chart.
+#
+# See formatting note in Spreadsheet::WriteExcel::Chart.
+#
+# Copyright 2000-2010, John McNamara, jmcnamara@cpan.org
+#
+# Documentation after __END__
+#
+
+require Exporter;
+
+use strict;
+use Spreadsheet::WriteExcel::Chart;
+
+
+use vars qw($VERSION @ISA);
+@ISA = qw(Spreadsheet::WriteExcel::Chart Exporter);
+
+$VERSION = '2.37';
+
+###############################################################################
+#
+# new()
+#
+#
+sub new {
+
+    my $class = shift;
+    my $self  = Spreadsheet::WriteExcel::Chart->new( @_ );
+
+    bless $self, $class;
+    return $self;
+}
+
+
+###############################################################################
+#
+# _store_chart_type()
+#
+# Implementation of the abstract method from the specific chart class.
+#
+# Write the LINE chart BIFF record. Defines a line chart type.
+#
+sub _store_chart_type {
+
+    my $self = shift;
+
+    my $record = 0x1018;    # Record identifier.
+    my $length = 0x0002;    # Number of bytes to follow.
+    my $grbit  = 0x0000;    # Option flags.
+
+    my $header = pack 'vv', $record, $length;
+    my $data = pack 'v', $grbit;
+
+    $self->_append( $header, $data );
+}
+
+
+1;
+
+
+__END__
+
+
+=head1 NAME
+
+Line - A writer class for Excel Line charts.
+
+=head1 SYNOPSIS
+
+To create a simple Excel file with a Line chart using Spreadsheet::WriteExcel:
+
+    #!/usr/bin/perl -w
+
+    use strict;
+    use Spreadsheet::WriteExcel;
+
+    my $workbook  = Spreadsheet::WriteExcel->new( 'chart.xls' );
+    my $worksheet = $workbook->add_worksheet();
+
+    my $chart     = $workbook->add_chart( type => 'line' );
+
+    # Configure the chart.
+    $chart->add_series(
+        categories => '=Sheet1!$A$2:$A$7',
+        values     => '=Sheet1!$B$2:$B$7',
+    );
+
+    # Add the worksheet data the chart refers to.
+    my $data = [
+        [ 'Category', 2, 3, 4, 5, 6, 7 ],
+        [ 'Value',    1, 4, 5, 2, 1, 5 ],
+    ];
+
+    $worksheet->write( 'A1', $data );
+
+    __END__
+
+=head1 DESCRIPTION
+
+This module implements Line charts for L<Spreadsheet::WriteExcel>. The chart object is created via the Workbook C<add_chart()> method:
+
+    my $chart = $workbook->add_chart( type => 'line' );
+
+Once the object is created it can be configured via the following methods that are common to all chart classes:
+
+    $chart->add_series();
+    $chart->set_x_axis();
+    $chart->set_y_axis();
+    $chart->set_title();
+
+These methods are explained in detail in L<Spreadsheet::WriteExcel::Chart>. Class specific methods or settings, if any, are explained below.
+
+=head1 Line Chart Methods
+
+There aren't currently any line chart specific methods. See the TODO section of L<Spreadsheet::WriteExcel::Chart>.
+
+=head1 EXAMPLE
+
+Here is a complete example that demonstrates most of the available features when creating a chart.
+
+    #!/usr/bin/perl -w
+
+    use strict;
+    use Spreadsheet::WriteExcel;
+
+    my $workbook  = Spreadsheet::WriteExcel->new( 'chart_line.xls' );
+    my $worksheet = $workbook->add_worksheet();
+    my $bold      = $workbook->add_format( bold => 1 );
+
+    # Add the worksheet data that the charts will refer to.
+    my $headings = [ 'Number', 'Sample 1', 'Sample 2' ];
+    my $data = [
+        [ 2, 3, 4, 5, 6, 7 ],
+        [ 1, 4, 5, 2, 1, 5 ],
+        [ 3, 6, 7, 5, 4, 3 ],
+    ];
+
+    $worksheet->write( 'A1', $headings, $bold );
+    $worksheet->write( 'A2', $data );
+
+    # Create a new chart object. In this case an embedded chart.
+    my $chart = $workbook->add_chart( type => 'line', embedded => 1 );
+
+    # Configure the first series. (Sample 1)
+    $chart->add_series(
+        name       => 'Sample 1',
+        categories => '=Sheet1!$A$2:$A$7',
+        values     => '=Sheet1!$B$2:$B$7',
+    );
+
+    # Configure the second series. (Sample 2)
+    $chart->add_series(
+        name       => 'Sample 2',
+        categories => '=Sheet1!$A$2:$A$7',
+        values     => '=Sheet1!$C$2:$C$7',
+    );
+
+    # Add a chart title and some axis labels.
+    $chart->set_title ( name => 'Results of sample analysis' );
+    $chart->set_x_axis( name => 'Test number' );
+    $chart->set_y_axis( name => 'Sample length (cm)' );
+
+    # Insert the chart into the worksheet (with an offset).
+    $worksheet->insert_chart( 'D2', $chart, 25, 10 );
+
+    __END__
+
+
+=begin html
+
+<p>This will produce a chart that looks like this:</p>
+
+<p><center><img src="http://homepage.eircom.net/~jmcnamara/perl/images/line1.jpg" width="527" height="320" alt="Chart example." /></center></p>
+
+=end html
+
+
+=head1 AUTHOR
+
+John McNamara jmcnamara@cpan.org
+
+=head1 COPYRIGHT
+
+Copyright MM-MMX, John McNamara.
+
+All Rights Reserved. This module is free software. It may be used, redistributed and/or modified under the same terms as Perl itself.
+
diff --git a/mcu/tools/perl/Spreadsheet/WriteExcel/Chart/Pie.pm b/mcu/tools/perl/Spreadsheet/WriteExcel/Chart/Pie.pm
new file mode 100644
index 0000000..6427e40
--- /dev/null
+++ b/mcu/tools/perl/Spreadsheet/WriteExcel/Chart/Pie.pm
@@ -0,0 +1,217 @@
+package Spreadsheet::WriteExcel::Chart::Pie;
+
+###############################################################################
+#
+# Pie - A writer class for Excel Pie charts.
+#
+# Used in conjunction with Spreadsheet::WriteExcel::Chart.
+#
+# See formatting note in Spreadsheet::WriteExcel::Chart.
+#
+# Copyright 2000-2010, John McNamara, jmcnamara@cpan.org
+#
+# Documentation after __END__
+#
+
+require Exporter;
+
+use strict;
+use Spreadsheet::WriteExcel::Chart;
+
+
+use vars qw($VERSION @ISA);
+@ISA = qw(Spreadsheet::WriteExcel::Chart Exporter);
+
+$VERSION = '2.37';
+
+###############################################################################
+#
+# new()
+#
+#
+sub new {
+
+    my $class = shift;
+    my $self  = Spreadsheet::WriteExcel::Chart->new( @_ );
+
+    $self->{_vary_data_color} = 1;
+
+    bless $self, $class;
+    return $self;
+}
+
+
+###############################################################################
+#
+# _store_chart_type()
+#
+# Implementation of the abstract method from the specific chart class.
+#
+# Write the Pie chart BIFF record.
+#
+sub _store_chart_type {
+
+    my $self = shift;
+
+    my $record = 0x1019;    # Record identifier.
+    my $length = 0x0006;    # Number of bytes to follow.
+    my $angle  = 0x0000;    # Angle.
+    my $donut  = 0x0000;    # Donut hole size.
+    my $grbit  = 0x0002;    # Option flags.
+
+    my $header = pack 'vv', $record, $length;
+    my $data = '';
+    $data .= pack 'v', $angle;
+    $data .= pack 'v', $donut;
+    $data .= pack 'v', $grbit;
+
+    $self->_append( $header, $data );
+}
+
+
+###############################################################################
+#
+# _store_axisparent_stream(). Overridden.
+#
+# Write the AXISPARENT chart substream.
+#
+# A Pie chart has no X or Y axis so we override this method to remove them.
+#
+sub _store_axisparent_stream {
+
+    my $self = shift;
+
+    $self->_store_axisparent( @{ $self->{_config}->{_axisparent} } );
+
+    $self->_store_begin();
+    $self->_store_pos( @{ $self->{_config}->{_axisparent_pos} } );
+
+    $self->_store_chartformat_stream();
+    $self->_store_end();
+}
+
+
+1;
+
+
+__END__
+
+
+=head1 NAME
+
+Pie - A writer class for Excel Pie charts.
+
+=head1 SYNOPSIS
+
+To create a simple Excel file with a Pie chart using Spreadsheet::WriteExcel:
+
+    #!/usr/bin/perl -w
+
+    use strict;
+    use Spreadsheet::WriteExcel;
+
+    my $workbook  = Spreadsheet::WriteExcel->new( 'chart.xls' );
+    my $worksheet = $workbook->add_worksheet();
+
+    my $chart     = $workbook->add_chart( type => 'pie' );
+
+    # Configure the chart.
+    $chart->add_series(
+        categories => '=Sheet1!$A$2:$A$7',
+        values     => '=Sheet1!$B$2:$B$7',
+    );
+
+    # Add the worksheet data the chart refers to.
+    my $data = [
+        [ 'Category', 2, 3, 4, 5, 6, 7 ],
+        [ 'Value',    1, 4, 5, 2, 1, 5 ],
+    ];
+
+    $worksheet->write( 'A1', $data );
+
+    __END__
+
+=head1 DESCRIPTION
+
+This module implements Pie charts for L<Spreadsheet::WriteExcel>. The chart object is created via the Workbook C<add_chart()> method:
+
+    my $chart = $workbook->add_chart( type => 'pie' );
+
+Once the object is created it can be configured via the following methods that are common to all chart classes:
+
+    $chart->add_series();
+    $chart->set_title();
+
+These methods are explained in detail in L<Spreadsheet::WriteExcel::Chart>. Class specific methods or settings, if any, are explained below.
+
+=head1 Pie Chart Methods
+
+There aren't currently any pie chart specific methods. See the TODO section of L<Spreadsheet::WriteExcel::Chart>.
+
+A Pie chart doesn't have an X or Y axis so the following common chart methods are ignored.
+
+    $chart->set_x_axis();
+    $chart->set_y_axis();
+
+=head1 EXAMPLE
+
+Here is a complete example that demonstrates most of the available features when creating a chart.
+
+    #!/usr/bin/perl -w
+
+    use strict;
+    use Spreadsheet::WriteExcel;
+
+    my $workbook  = Spreadsheet::WriteExcel->new( 'chart_pie.xls' );
+    my $worksheet = $workbook->add_worksheet();
+    my $bold      = $workbook->add_format( bold => 1 );
+
+    # Add the worksheet data that the charts will refer to.
+    my $headings = [ 'Category', 'Values' ];
+    my $data = [
+        [ 'Apple', 'Cherry', 'Pecan' ],
+        [ 60,       30,       10     ],
+    ];
+
+    $worksheet->write( 'A1', $headings, $bold );
+    $worksheet->write( 'A2', $data );
+
+    # Create a new chart object. In this case an embedded chart.
+    my $chart = $workbook->add_chart( type => 'pie', embedded => 1 );
+
+    # Configure the series.
+    $chart->add_series(
+        name       => 'Pie sales data',
+        categories => '=Sheet1!$A$2:$A$4',
+        values     => '=Sheet1!$B$2:$B$4',
+    );
+
+    # Add a title.
+    $chart->set_title( name => 'Popular Pie Types' );
+
+
+    # Insert the chart into the worksheet (with an offset).
+    $worksheet->insert_chart( 'C2', $chart, 25, 10 );
+
+    __END__
+
+
+=begin html
+
+<p>This will produce a chart that looks like this:</p>
+
+<p><center><img src="http://homepage.eircom.net/~jmcnamara/perl/images/pie1.jpg" width="527" height="320" alt="Chart example." /></center></p>
+
+=end html
+
+
+=head1 AUTHOR
+
+John McNamara jmcnamara@cpan.org
+
+=head1 COPYRIGHT
+
+Copyright MM-MMX, John McNamara.
+
+All Rights Reserved. This module is free software. It may be used, redistributed and/or modified under the same terms as Perl itself.
+
diff --git a/mcu/tools/perl/Spreadsheet/WriteExcel/Chart/Scatter.pm b/mcu/tools/perl/Spreadsheet/WriteExcel/Chart/Scatter.pm
new file mode 100644
index 0000000..54205de
--- /dev/null
+++ b/mcu/tools/perl/Spreadsheet/WriteExcel/Chart/Scatter.pm
@@ -0,0 +1,245 @@
+package Spreadsheet::WriteExcel::Chart::Scatter;
+
+###############################################################################
+#
+# Scatter - A writer class for Excel Scatter charts.
+#
+# Used in conjunction with Spreadsheet::WriteExcel::Chart.
+#
+# See formatting note in Spreadsheet::WriteExcel::Chart.
+#
+# Copyright 2000-2010, John McNamara, jmcnamara@cpan.org
+#
+# Documentation after __END__
+#
+
+require Exporter;
+
+use strict;
+use Spreadsheet::WriteExcel::Chart;
+
+
+use vars qw($VERSION @ISA);
+@ISA = qw(Spreadsheet::WriteExcel::Chart Exporter);
+
+$VERSION = '2.37';
+
+###############################################################################
+#
+# new()
+#
+#
+sub new {
+
+    my $class = shift;
+    my $self  = Spreadsheet::WriteExcel::Chart->new( @_ );
+
+    bless $self, $class;
+    return $self;
+}
+
+
+###############################################################################
+#
+# _store_chart_type()
+#
+# Implementation of the abstract method from the specific chart class.
+#
+# Write the SCATTER chart BIFF record. Defines a scatter chart type.
+#
+sub _store_chart_type {
+
+    my $self = shift;
+
+    my $record       = 0x101B;    # Record identifier.
+    my $length       = 0x0006;    # Number of bytes to follow.
+    my $bubble_ratio = 0x0064;    # Bubble ratio.
+    my $bubble_type  = 0x0001;    # Bubble type.
+    my $grbit        = 0x0000;    # Option flags.
+
+    my $header = pack 'vv', $record, $length;
+    my $data = '';
+    $data .= pack 'v', $bubble_ratio;
+    $data .= pack 'v', $bubble_type;
+    $data .= pack 'v', $grbit;
+
+    $self->_append( $header, $data );
+}
+
+
+###############################################################################
+#
+# _store_axis_category_stream(). Overridden.
+#
+# Write the AXIS chart substream for the chart category.
+#
+# For a Scatter chart the category stream is replace with a values stream. We
+# override this method and turn it into a values stream.
+#
+sub _store_axis_category_stream {
+
+    my $self = shift;
+
+    $self->_store_axis( 0 );
+
+    $self->_store_begin();
+    $self->_store_valuerange();
+    $self->_store_tick();
+    $self->_store_end();
+}
+
+
+###############################################################################
+#
+# _store_marker_dataformat_stream(). Overridden.
+#
+# This is an implementation of the parent abstract method  to define
+# properties of markers, linetypes, pie formats and other.
+#
+sub _store_marker_dataformat_stream {
+
+    my $self = shift;
+
+    $self->_store_dataformat( 0x0000, 0xFFFD, 0x0000 );
+
+    $self->_store_begin();
+    $self->_store_3dbarshape();
+    $self->_store_lineformat( 0x00000000, 0x0005, 0xFFFF, 0x0008, 0x004D );
+    $self->_store_areaformat( 0x00FFFFFF, 0x0000, 0x01, 0x01, 0x4E, 0x4D );
+    $self->_store_pieformat();
+    $self->_store_markerformat( 0x00, 0x00, 0x02, 0x01, 0x4D, 0x4D, 0x3C );
+    $self->_store_end();
+
+}
+
+
+1;
+
+
+__END__
+
+
+=head1 NAME
+
+Scatter - A writer class for Excel Scatter charts.
+
+=head1 SYNOPSIS
+
+To create a simple Excel file with a Scatter chart using Spreadsheet::WriteExcel:
+
+    #!/usr/bin/perl -w
+
+    use strict;
+    use Spreadsheet::WriteExcel;
+
+    my $workbook  = Spreadsheet::WriteExcel->new( 'chart.xls' );
+    my $worksheet = $workbook->add_worksheet();
+
+    my $chart     = $workbook->add_chart( type => 'scatter' );
+
+    # Configure the chart.
+    $chart->add_series(
+        categories => '=Sheet1!$A$2:$A$7',
+        values     => '=Sheet1!$B$2:$B$7',
+    );
+
+    # Add the worksheet data the chart refers to.
+    my $data = [
+        [ 'Category', 2, 3, 4, 5, 6, 7 ],
+        [ 'Value',    1, 4, 5, 2, 1, 5 ],
+    ];
+
+    $worksheet->write( 'A1', $data );
+
+    __END__
+
+=head1 DESCRIPTION
+
+This module implements Scatter charts for L<Spreadsheet::WriteExcel>. The chart object is created via the Workbook C<add_chart()> method:
+
+    my $chart = $workbook->add_chart( type => 'scatter' );
+
+Once the object is created it can be configured via the following methods that are common to all chart classes:
+
+    $chart->add_series();
+    $chart->set_x_axis();
+    $chart->set_y_axis();
+    $chart->set_title();
+
+These methods are explained in detail in L<Spreadsheet::WriteExcel::Chart>. Class specific methods or settings, if any, are explained below.
+
+=head1 Scatter Chart Methods
+
+There aren't currently any scatter chart specific methods. See the TODO section of L<Spreadsheet::WriteExcel::Chart>.
+
+=head1 EXAMPLE
+
+Here is a complete example that demonstrates most of the available features when creating a chart.
+
+    #!/usr/bin/perl -w
+
+    use strict;
+    use Spreadsheet::WriteExcel;
+
+    my $workbook  = Spreadsheet::WriteExcel->new( 'chart_scatter.xls' );
+    my $worksheet = $workbook->add_worksheet();
+    my $bold      = $workbook->add_format( bold => 1 );
+
+    # Add the worksheet data that the charts will refer to.
+    my $headings = [ 'Number', 'Sample 1', 'Sample 2' ];
+    my $data = [
+        [ 2, 3, 4, 5, 6, 7 ],
+        [ 1, 4, 5, 2, 1, 5 ],
+        [ 3, 6, 7, 5, 4, 3 ],
+    ];
+
+    $worksheet->write( 'A1', $headings, $bold );
+    $worksheet->write( 'A2', $data );
+
+    # Create a new chart object. In this case an embedded chart.
+    my $chart = $workbook->add_chart( type => 'scatter', embedded => 1 );
+
+    # Configure the first series. (Sample 1)
+    $chart->add_series(
+        name       => 'Sample 1',
+        categories => '=Sheet1!$A$2:$A$7',
+        values     => '=Sheet1!$B$2:$B$7',
+    );
+
+    # Configure the second series. (Sample 2)
+    $chart->add_series(
+        name       => 'Sample 2',
+        categories => '=Sheet1!$A$2:$A$7',
+        values     => '=Sheet1!$C$2:$C$7',
+    );
+
+    # Add a chart title and some axis labels.
+    $chart->set_title ( name => 'Results of sample analysis' );
+    $chart->set_x_axis( name => 'Test number' );
+    $chart->set_y_axis( name => 'Sample length (cm)' );
+
+    # Insert the chart into the worksheet (with an offset).
+    $worksheet->insert_chart( 'D2', $chart, 25, 10 );
+
+    __END__
+
+
+=begin html
+
+<p>This will produce a chart that looks like this:</p>
+
+<p><center><img src="http://homepage.eircom.net/~jmcnamara/perl/images/scatter1.jpg" width="527" height="320" alt="Chart example." /></center></p>
+
+=end html
+
+
+=head1 AUTHOR
+
+John McNamara jmcnamara@cpan.org
+
+=head1 COPYRIGHT
+
+Copyright MM-MMX, John McNamara.
+
+All Rights Reserved. This module is free software. It may be used, redistributed and/or modified under the same terms as Perl itself.
+
diff --git a/mcu/tools/perl/Spreadsheet/WriteExcel/Chart/Stock.pm b/mcu/tools/perl/Spreadsheet/WriteExcel/Chart/Stock.pm
new file mode 100644
index 0000000..6a529f0
--- /dev/null
+++ b/mcu/tools/perl/Spreadsheet/WriteExcel/Chart/Stock.pm
@@ -0,0 +1,257 @@
+package Spreadsheet::WriteExcel::Chart::Stock;
+
+###############################################################################
+#
+# Stock - A writer class for Excel Stock charts.
+#
+# Used in conjunction with Spreadsheet::WriteExcel::Chart.
+#
+# See formatting note in Spreadsheet::WriteExcel::Chart.
+#
+# Copyright 2000-2010, John McNamara, jmcnamara@cpan.org
+#
+# Documentation after __END__
+#
+
+require Exporter;
+
+use strict;
+use Spreadsheet::WriteExcel::Chart;
+
+
+use vars qw($VERSION @ISA);
+@ISA = qw(Spreadsheet::WriteExcel::Chart Exporter);
+
+$VERSION = '2.37';
+
+###############################################################################
+#
+# new()
+#
+#
+sub new {
+
+    my $class = shift;
+    my $self  = Spreadsheet::WriteExcel::Chart->new( @_ );
+
+    bless $self, $class;
+    return $self;
+}
+
+
+###############################################################################
+#
+# _store_chart_type()
+#
+# Implementation of the abstract method from the specific chart class.
+#
+# Write the LINE chart BIFF record. A stock chart uses the same LINE record
+# as a line chart but with additional DROPBAR and CHARTLINE records to define
+# the stock style.
+#
+sub _store_chart_type {
+
+    my $self = shift;
+
+    my $record = 0x1018;    # Record identifier.
+    my $length = 0x0002;    # Number of bytes to follow.
+    my $grbit  = 0x0000;    # Option flags.
+
+    my $header = pack 'vv', $record, $length;
+    my $data = pack 'v', $grbit;
+
+    $self->_append( $header, $data );
+}
+
+###############################################################################
+#
+# _store_marker_dataformat_stream(). Overridden.
+#
+# This is an implementation of the parent abstract method to define
+# properties of markers, linetypes, pie formats and other.
+#
+sub _store_marker_dataformat_stream {
+
+    my $self = shift;
+
+    $self->_store_dropbar();
+    $self->_store_begin();
+    $self->_store_lineformat( 0x00000000, 0x0000, 0xFFFF, 0x0001, 0x004F );
+    $self->_store_areaformat( 0x00FFFFFF, 0x0000, 0x01, 0x01, 0x09, 0x08 );
+    $self->_store_end();
+
+    $self->_store_dropbar();
+    $self->_store_begin();
+    $self->_store_lineformat( 0x00000000, 0x0000, 0xFFFF, 0x0001, 0x004F );
+    $self->_store_areaformat( 0x0000, 0x00FFFFFF, 0x01, 0x01, 0x08, 0x09 );
+    $self->_store_end();
+
+    $self->_store_chartline();
+    $self->_store_lineformat( 0x00000000, 0x0000, 0xFFFF, 0x0000, 0x004F );
+
+
+    $self->_store_dataformat( 0x0000, 0xFFFD, 0x0000 );
+    $self->_store_begin();
+    $self->_store_3dbarshape();
+    $self->_store_lineformat( 0x00000000, 0x0005, 0xFFFF, 0x0000, 0x004F );
+    $self->_store_areaformat( 0x00000000, 0x0000, 0x00, 0x01, 0x4D, 0x4D );
+    $self->_store_pieformat();
+    $self->_store_markerformat( 0x00, 0x00, 0x00, 0x00, 0x4D, 0x4D, 0x3C );
+    $self->_store_end();
+
+}
+
+
+1;
+
+
+__END__
+
+
+=head1 NAME
+
+Stock - A writer class for Excel Stock charts.
+
+=head1 SYNOPSIS
+
+To create a simple Excel file with a Stock chart using Spreadsheet::WriteExcel:
+
+    #!/usr/bin/perl -w
+
+    use strict;
+    use Spreadsheet::WriteExcel;
+
+    my $workbook  = Spreadsheet::WriteExcel->new( 'chart.xls' );
+    my $worksheet = $workbook->add_worksheet();
+
+    my $chart     = $workbook->add_chart( type => 'stock' );
+
+    # Add a series for each Open-High-Low-Close.
+    $chart->add_series( categories => '=Sheet1!$A$2:$A$6', values => '=Sheet1!$B$2:$B$6' );
+    $chart->add_series( categories => '=Sheet1!$A$2:$A$6', values => '=Sheet1!$C$2:$C$6' );
+    $chart->add_series( categories => '=Sheet1!$A$2:$A$6', values => '=Sheet1!$D$2:$D$6' );
+    $chart->add_series( categories => '=Sheet1!$A$2:$A$6', values => '=Sheet1!$E$2:$E$6' );
+
+    # Add the worksheet data the chart refers to.
+    # ... See the full example below.
+
+    __END__
+
+
+=head1 DESCRIPTION
+
+This module implements Stock charts for L<Spreadsheet::WriteExcel>. The chart object is created via the Workbook C<add_chart()> method:
+
+    my $chart = $workbook->add_chart( type => 'stock' );
+
+Once the object is created it can be configured via the following methods that are common to all chart classes:
+
+    $chart->add_series();
+    $chart->set_x_axis();
+    $chart->set_y_axis();
+    $chart->set_title();
+
+These methods are explained in detail in L<Spreadsheet::WriteExcel::Chart>. Class specific methods or settings, if any, are explained below.
+
+=head1 Stock Chart Methods
+
+There aren't currently any stock chart specific methods. See the TODO section of L<Spreadsheet::WriteExcel::Chart>.
+
+The default Stock chart is an Open-High-Low-Close chart. A series must be added for each of these data sources.
+
+The default Stock chart is in black and white. User defined colours will be added at a later stage.
+
+=head1 EXAMPLE
+
+Here is a complete example that demonstrates most of the available features when creating a Stock chart.
+
+    #!/usr/bin/perl -w
+
+    use strict;
+    use Spreadsheet::WriteExcel;
+
+    my $workbook    = Spreadsheet::WriteExcel->new( 'chart_stock_ex.xls' );
+    my $worksheet   = $workbook->add_worksheet();
+    my $bold        = $workbook->add_format( bold => 1 );
+    my $date_format = $workbook->add_format( num_format => 'dd/mm/yyyy' );
+
+    # Add the worksheet data that the charts will refer to.
+    my $headings = [ 'Date', 'Open', 'High', 'Low', 'Close' ];
+    my @data = (
+        [ '2009-08-23', 110.75, 113.48, 109.05, 109.40 ],
+        [ '2009-08-24', 111.24, 111.60, 103.57, 104.87 ],
+        [ '2009-08-25', 104.96, 108.00, 103.88, 106.00 ],
+        [ '2009-08-26', 104.95, 107.95, 104.66, 107.91 ],
+        [ '2009-08-27', 108.10, 108.62, 105.69, 106.15 ],
+    );
+
+    $worksheet->write( 'A1', $headings, $bold );
+
+    my $row = 1;
+    for my $data ( @data ) {
+        $worksheet->write( $row, 0, $data->[0], $date_format );
+        $worksheet->write( $row, 1, $data->[1] );
+        $worksheet->write( $row, 2, $data->[2] );
+        $worksheet->write( $row, 3, $data->[3] );
+        $worksheet->write( $row, 4, $data->[4] );
+        $row++;
+    }
+
+    # Create a new chart object. In this case an embedded chart.
+    my $chart = $workbook->add_chart( type => 'stock', embedded => 1 );
+
+    # Add a series for each of the Open-High-Low-Close columns.
+    $chart->add_series(
+        categories => '=Sheet1!$A$2:$A$6',
+        values     => '=Sheet1!$B$2:$B$6',
+        name       => 'Open',
+    );
+
+    $chart->add_series(
+        categories => '=Sheet1!$A$2:$A$6',
+        values     => '=Sheet1!$C$2:$C$6',
+        name       => 'High',
+    );
+
+    $chart->add_series(
+        categories => '=Sheet1!$A$2:$A$6',
+        values     => '=Sheet1!$D$2:$D$6',
+        name       => 'Low',
+    );
+
+    $chart->add_series(
+        categories => '=Sheet1!$A$2:$A$6',
+        values     => '=Sheet1!$E$2:$E$6',
+        name       => 'Close',
+    );
+
+    # Add a chart title and some axis labels.
+    $chart->set_title( name => 'Open-High-Low-Close', );
+    $chart->set_x_axis( name => 'Date', );
+    $chart->set_y_axis( name => 'Share price', );
+
+    # Insert the chart into the worksheet (with an offset).
+    $worksheet->insert_chart( 'F2', $chart, 25, 10 );
+
+    __END__
+
+
+=begin html
+
+<p>This will produce a chart that looks like this:</p>
+
+<p><center><img src="http://homepage.eircom.net/~jmcnamara/perl/images/stock1.jpg" width="527" height="320" alt="Chart example." /></center></p>
+
+=end html
+
+
+=head1 AUTHOR
+
+John McNamara jmcnamara@cpan.org
+
+=head1 COPYRIGHT
+
+Copyright MM-MMX, John McNamara.
+
+All Rights Reserved. This module is free software. It may be used, redistributed and/or modified under the same terms as Perl itself.
+